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Chevy Silverado and GMC Sierra Transmission Problems

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  • bob261bob261 Posts: 1
    I have a 2000 Chevrolet ext cab 4x4, i have had the transmission rebuilt and now it will only go into 1st and reverse. The pump as been replaced and the valves all check. any ideas?
  • I bought a 04 Sierra with 110km on it from a dealer in Edmonton. It passed inspection and was delivered to me last night in calgary. Sometime today I was coming around a corner and I punched it a little bit, all of the sudden I heard a major CLUNK. Then it started reving like crazy. Now my truck won't move in D or 3rd, I had to limp home in 2nd gear.
    Super pissed because I now have to take it into the shop and I haven't even had it for 12hrs. Dealer was semi helpful in arranging a local mechanic, but I am worried it may happen again. And from all the posts in these forums my confidence if definitely hanging by a thread.
    Any thoughts as to why my truck moves like a castrated dog.....???
  • chuck1940chuck1940 Posts: 1
    My wife managed to turn our GMC Sierra 2001 automatic off and removed key when not in park gear. Now key will not turn, everything is locked up unable to get gearshift in park or to move shift in any way or to start vehicle.
  • I have a 2001 sierra bought it with 34,800 miles on it. Noticed a clunk every nopw and then. 35,200 on it the tranny went CLUNK and tranny was done......... no forward gears. $1800.00 + enjoy I did.
  • 94chevy94chevy Posts: 1
    I have a question about my trans, I have a 94 Chevy pick-up with 300,000+ miles on it (yes with the same trans and engine that has never been open) eitherway here is my problem. I have the 4L60E model trans and it is not licking the converter in in its over drive gear (yes it is full of fluid) It did this to me once before and I found that it was the brake light switch, yeah I know sounds wierd but it made since and it was the problem, now I have replaced it again and thats not it this time, I have traced all the wiring that I can find with no breaks or loose wires that i can find. these trans are pretty simple and short of pulling that trans out I am sctatching my head. its probably somthing simple that i am not thinking of. Any ideas?
  • jcc1958jcc1958 Posts: 6
    I bought a 1996 GMC Z71 automatic :lemon: ,the guy told me it had a rebuilt tranny and only had 5,000 miles on it.It did good on the way home but I didn't even make it home with it.First thing I noticed is I was going up a small hill and it started jerking some.I almost got it to my sons house but all gears went out of it so I put it in reverse and was backing up to get in his driveway and it stopped working.Well last nite I got in it and i drove it around the house a couple of times.I would have to put it in gear as soon as it started then after driving just a couple of feet it would stop again no gears and it would make this hissing noise sounds like an air hose to me.I cut the truck off and it would start again and go a ways then nothing again. :mad: Now I dont know for sure that it was rebuilt. I hate to have to buy one.Anyone else have this problem? I need Help Thanks in advance.
  • Sounds like it wasn't rebuild, OR it wasn't done right. something could be clogged or not hooked up all the way. Price a new one, but before buying one, price how much it would cost to have a shop tell you EXACTLY whats wrong, if it needs to be rebuilt/replaced then ask how much they would charge. Usually a little cheaper to have it rebuilt, but I wouldn't advise you to tell the shops you talk to that it has supposedly already been rebuilt. Most shops WON'T touch a tranny thats already been reuilt, they will say you need a whole new one. Good luck.
  • jcc1958jcc1958 Posts: 6
    thanks I guess the guy knew it was bad he didnt return my calls or emails.I wonder why at times it will go in gear and go about 10 feet or so then stop pulling at all when it does this is makes a hissing noise as i said then you can turn it off then start back up and put it in gear as soon as you do and it will go again for about 10 feet then when that noise starts making that noise it will stop again.I hope its not the tranny I sure would hate to spend that much on it to get it running.I didnt realize that chevy and gmc trans were so bad to go out.I did price a new one they said around 2,000.00 for the trans and labor.
    Thanks
  • Well it depends on the people who have owned the truck, pretty much with any vehicle, if you care for it, it will run well for a very long time. Routine maintenance, etc. We had the same problem, i actually posted about our truck on here too. Ours had an allison transmission in it, supposedly one of the toughest, if not THE toughest tranny there is, and it went out. Our truck is still not running because the guy we had rebuild it, didn't do it right and the gears are grinding putting metal through the valve body and into the fluid, clogging the valves. It currently is stuck in reverse mode and only has 3rd clutch and reverse clutch. I guess it just depends on the job, IF yours was rebuilt then the guy didn't do it right. It also could very well be an over-heating problem or an electrical problem. You can take it to a shop and most places will only charge an hours labor to see whats wrong with the truck. If it comes down to the tranny then you know. Better to be safe than put a ton more money into it and be sorry when you find out that wasn't the problem. Even if you have a buddy who has a scan tool that you can hook into it, If the truck has the ports for one, you can do it free that way, the computer will usually tell you if there are any electrical issues or for example and misfire, which would be a spark plug. vehicles that haven't been well cared for are a pain. Hope some of this helps! =)
  • jcc1958jcc1958 Posts: 6
    I started the truck today and it ran for about 10 minutes before it went out of gear and it made that hissing (air) noise when it did.Started it back up and it moved about 2 ft..you can tell when it's going to go out because of that hissing noise.
    an ideas?
  • jcc1958jcc1958 Posts: 6
    I started the truck today and it ran for about 10 minutes before it went out of gear and it made that hissing (air) noise when it did.Started it back up and it moved about 2 ft..you can tell when it's going to go out because of that hissing noise.
    an ideas? oh I forgot to put the # I got off of the tranny.. 15671928 no idea what it means.
  • krazyk22krazyk22 Posts: 3
    I own a 2000 Silverado 1500 4x4 with 125K miles. Here recently when I accelerate, the truck often revs up into the 3000 rpms, and and sounds like it's going, but the truck doesn't move. I have been assuming it must be the transmission, but could this be something else?
  • jcc1958jcc1958 Posts: 6
    Well I am having the transmission rebuilt.My mechanic said that tranny had NOT been rebuilt and gave me some tips for checking for that.You can bet next time I will.He told me my motor was good so I said just fix it then.He said the motor should last for another 100 to 300 thousand miles.So I am going to take the chance and see.Will let you all know what happens.I should have it back in about a week.The guy I bought it from really ripped me a big one.Oh the tips he told me were to look at the fluid on the tranny fluid..I did that but it was before I drove it.He said the guy probably just changed the fluid is all he did.He said check it before you drive it and after and smell of it to.If it smells like its burnt walk away unless you want to put a tranny in it..I hope that guy knows what comes around goes around..He also said if it shirfted smooth that you couldnt feel it that was bad to..He said you should be able to tell..to feel when it shifts ..maybe this will help someone else so they dont get ripped one like I did.
  • saintalsaintal Posts: 1
    HI, did you ever find out what caused the problem.

    I had a problem today pulled out on hwy. lost 3 4 forth had to drive home in 2nd gear.

    thanks, saintal
  • jcc1958jcc1958 Posts: 6
    Yes it's my tranny..the guy told me it had been rebulit but it hadn't..but it's getting rebuilt right now.Hope to have it back by the end of next week.The guy thats rebuilding it told me he would be out of a job if it wasn't for gmc and chevy transmissions..they still put that same one in trucks now..Hope that's not what yours is.let me know good luck
  • lpopowichlpopowich Posts: 1
    I have a 2003 chevy 1500 4X4 , i have been having issues with my transfercase shift motot, Mechanic said it was garbage, I have bought a new one, installed it and tried it agiain, everthing seemed to work on electronic shift module display in truck , but when I did go to shift into 4X4 I heard it all working from inside the truck ,( the electronic motor working ) , Then it turned all lights on display off, and the instriment display indicated for me to service 4 wheel drive. and none of the display lights work again.
    I am back to square one. would this be I have to get me truck plugged back into the mechanic computer and re set ????

    any help would be appreciated.

    Lorne
  • txrednecktxredneck Posts: 8
    SORRY, NO I NEVER FOUND OUT WHAT IS WRONG. IT SOMETIMES SHIFTS GREAT, AND OTHER TIMES IT WINDS UP WAY FARTHER THAN IT SHOULD BEFORE IT WILL SHIFT. I KNOW LITTLE TO NOTHING ABOUT TRANSMISSIONS SO I AM AFRAID TO TEAR INTO IT THAT I WILL DO MORE DAMAGE THAN GOOD.
  • gvickgvick Posts: 1
    I have a 1995 Chevy Z71, it shifts from 1st to second just fine but will not shift into 3rd, the fluid does not smell burnt and still redish in color, any suggestions??
  • I have a 2007 silverado with the 4.8L v8 and 4 speed auto trans. When I manually shift the trans into 1st gear isn't it supposed to stay in first gear? At about 3400 rmp the trans will shift to 2nd even though i have the shifter at 1st. Also, if you put the shifter into 2nd and start from a dead stop isnt it supposed to start in first and then shift to 2nd? As it is right not it will not start in 1st, it starts in 2nd which is slow to say the least. I took it to the dealer and they said that is how it is supposed to work but im not accepting that. I have owned 2 silverados before this one and never had that happen. Is this something new in the newer trucks or am i the only one with this problem?
  • ejnicholejnichol Posts: 6
    Its normal. My '06 exhibits the same behavior.
  • Thats good to know. Thanks for checking!
  • I have a '02 Silverado Z71 that I have taken immaculate care of since purchasing the truck brand new off the lot in September '03. Earlier this month at 62K miles my transmission went out resulting in the vehicle losing the 2nd and 4th gears. The guys who serviced my truck say they have never seen a transmission with such low mileage so burnt up. The reason is there was excessive space in the clutches for those gears which causes them to slip which in return causes excessive wear and tear on the transmission. Apparently this was corrected in the '03 model trucks. Further, when you purchase a '02 transmission kit for this model truck there is an update that corrects this issue. What really gets my blood boiling is that GM will not admit its mistake and issue a recall for this. I have been told by mechanics at local GM dealerships they keep extras on the floor because the transmission have such a high failure rate. Thanks GM for draining a once loyal Chevy guy's bank account nearly $2,000 to fix something that you failed to correct. :lemon:
  • txrednecktxredneck Posts: 8
    I HAD THE SAME THING HAPPEN TO A 97 Z71. WE ONLY HAD ABOUT 45,000 ON THE TRUCK AND THE TRANSMISSION WENT OUT. WE HAD USED IT TO PULL A TRAILER A LOT AND EVEN THOUGH WE NEVER PULLED IT IN OD, THE TRANSMISSIONS IN A HALF TON PICKUP ARE JUST NOT DESIGNED TO PULL ALL THE TIME. I DON'T KNOW IF YOU USE YOUR TRUCK TO PULL OR NOT BUT THIS COULD BE THE CAUSE OR IT MAY JUST BE SOMETHING WRONG WITH THE TRANSMISSIONS IN THE ZZ 71 MODELS. IT COST ME ABOUT 3,000 TO REPLACE MINE. I ALSO HAD TO REPLACE THE MOTOR AT ABOUT 112,000 MILES. I THINK THE MAIN BEARING WENT OUT AND SHELLED THE ENGINE. IT SUCKS
  • Never have pulled a trailer with this truck. I've hauled around 3 beds full of cedar mulch, a load of compost and 1 pallet of sod... nothing that would grind down a transmission in only 62K miles.
  • akjbmwakjbmw Posts: 231
    Back in the olden days before the auto-trac and whatever other computer controlled traction stuff became in use, a common practice when in a slippery condition was to start from a stop in second gear.
    It decreased the tendency of the wheels to slip and allowed the clutch to slip instead. Whatever the reasons, it worked. Feather the clutch in second and you eased off on your way.
  • your transmission wont build up enough pressure to shift into third which means in your fluid passage u have a hairline crack inside... no nothing will leak out but its not good cause it is junk!! if your really luck it also could be a valve inside which is sticking not allowing you to shift...not hard to fix at all
  • My transmission was rebuilt by a close friend of mine due to the issue I described. He said he has never seen a trans with such low mileage so burned up in all his many years of experience and said the trans was not mounted properly at the factory. Additionally, he said there is a TSB on this issue and that it was corrected in the following year model. I have been working with GM and no shocker to me they don't care which is why I will NEVER buy another GM/Chevy product.
  • obyoneobyone Posts: 8,065
    Incorrectly mounted trans?

    What TSB?
  • clmnclmn Posts: 1
    Exact same jerking problem here for many months and getting worse... but with a 2006 Silverado 2500HD with less than 7,000 miles on it. 36 month warranty expired yesterday. Dealer says "screw" today after telling me they could find nothing wrong at last couple visits (of course not - problem is intermittent). How do I fix this thing??? :lemon:
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